11699results about "Shock proofing" patented technology

The invention discloses a composite protective structure resistant to blast shock which is mainly a point truss honeycomb integral protective structure formed by a honeycomb tensile layer and a lattice truss-type compression resistance layer through welding spots and connecting keys, and a foam energy absorbing layer is added on the outer layer. According to the composite protective structure, theforce transmission path of a concrete protective structure under the action of blast is innovatively optimized, the resistance level of the protective structure can be greatly improved, and the structure ductility is improved; and the dispersion of concrete fragments in the structure can be restrained, and the phenomenon of blast and explosion-induced collapse of similar traditional concrete protective structures is eliminated.

The invention discloses an assembly type prestressed self-resetting frame beam column replaceable energy dissipation joint which comprises a joint core area connecting device, a short steel beam connecting piece, an RC frame beam connecting piece, a replaceable energy dissipation device, a self-resetting device, a pin shaft and a friction base plate. The joint core area connecting device comprises a partition plate, a hoop and a short steel beam. The short steel beam connecting piece comprises a fixing plate, an anchoring plate and an outer friction lug plate; the RC frame beam connecting piece comprises an inner friction lug plate, an RC frame beam connecting end plate and embedded H-shaped steel; the hoop is connected with the fixing plate through the short steel beam, and the outer friction lug plate, the inner friction lug plate and the friction base plate are connected to form a friction energy dissipation device. The pin shaft is in running fit with the friction energy consumption device; the anchoring plate and the RC frame beam connecting end plate are connected through a replaceable energy consumption device; the RC frame beam connecting end plates are connected with the beam longitudinal bars. Two energy consumption devices are ingeniously designed, and the defect that the energy consumption level of the structure can only be in the low level after a single-form energy consumption component loses efficacy is overcome.

The present invention relates to the technical field of fabricated buildings. Disclosed is a fabricated steel structure residence system. The fabricated steel structure residence system of the present invention comprises a frame portion and a shear wall portion, wherein the frame portion comprises a special-shaped column, a steel beam and a floor system; and the special-shaped column comprises a steel pipe and a plurality of T-shaped steels arranged along a peripheral wall of the steel pipe. A combined T-O section form of the special-shaped column provided by the present invention can realize relative separation of a pressure from bending on a combined section, such that the fabricated steel structure residence system has good bending bearing capacity and rigidity. The characteristic of an outer T-shaped steel is used such that a full-bolt connection form can be used between the steel beam and the special-shaped column. Moreover, a reinforcement member is provided at a beam-column joint, such that the rigidity and strength of the joint region are improved. In addition, specific structures of a floor system and a shear wall are further optimized, and a corresponding joint connection method is provided, such that the fabricated steel structure residence system that can be quickly assembled and is stable in terms of connection is formed.

The invention provides an inhaul cable vibration control device and a vibration control method. The device comprises a speed type damping unit and a tuned mass damping unit, the speed type damping unit and the tuned mass damping unit are arranged close to the cable beam anchoring end of the inhaul cable, the speed type damping unit comprises two speed type dampers, and the two speed type dampers are symmetrically arranged on the two sides of the cable face of the inhaul cable; the two ends of the speed type damper are connected with the inhaul cable and the ground respectively. The method comprises the following steps: determining the relative arrangement positions of a speed type damping unit and a tuned mass damping unit on the inhaul cable according to the determined broadband vibration order and narrow-band vibration order of the inhaul cable; and configuration parameters of the speed type damping unit and the tuned mass damping unit are determined, the inhaul cable is configured according to the determined damping coefficient of the speed type damper and the cable direction installation positions of the speed type damping unit and the tuned mass damping unit, and vibration control is achieved through the configured inhaul cable. The method has the advantages of guaranteeing the vibration reduction effect of the inhaul cable, being convenient to construct and the like.

The invention relates to an assembly type node connecting device with a flexible damping function and an assembly damping method. The connecting device comprises a first upright post and a second upright post which are axially connected with the connecting sleeve, and a cross beam which is radially connected with the connecting sleeve; the first stand column and the second stand column are connected through a limiting ball and a first connecting assembly of a linkage damping mechanism of the annular energy dissipation groove. The first stand column, the second stand column and the connecting sleeve are connected through a second connecting assembly for secondary energy consumption through an elastic block and a spring combination. The cross beam is detachably connected with the connecting sleeve through a third connecting assembly; and a fourth connecting assembly for dissipating energy through a plurality of groups of elastic damping units is arranged between the first stand column and the connecting sleeve.

The invention relates to the technical field of building shock insulation, and discloses a building shock insulation rubber support which comprises a bottom connecting plate and a top connecting plate, a damping rubber body is arranged between the bottom connecting plate and the top connecting plate, and a first through hole is formed in the middle of the damping rubber body; a plurality of fixing grooves are formed in the damping rubber body in the axial direction, and metal plates are arranged in the fixing grooves. By arranging the bottom connecting plate with the adjusting rod, one part of the adjusting rod is inserted into the damping rubber body, and one end of the adjusting rod is movably connected with the bottom connecting plate, after vibration is finished, if the damping rubber body cannot restore to the original shape, force is applied to one end of the adjusting rod through a hydraulic mechanism in a pushing or pulling mode, and the damping rubber body cannot restore to the original shape. Under pushing of the adjusting rod, resetting of the damping rubber body can be rapidly completed, and operation is convenient and rapid.

The invention relates to a prefabricated wall type damper plugging structure and a construction method thereof, the plugging structure comprises two steel frameworks on the back side and the front side of a metal damper, and a ceiling keel is fixed at the lower end of an upper cantilever wall; the vertical keels are divided into a left keel bundle and a right keel bundle, and metal dampers are arranged in the interval between the two sets of vertical keels. The ground keel is used for connecting the lower ends of the vertical keels of the left keel bundle and the right keel bundle; a reserved interval is arranged at the upper ends of the ground keel and the lower cantilever wall and filled with cement mortar. The construction method comprises the steps that firstly, a steel framework is manufactured, cement mortar is smeared at the top end of a lower cantilever wall according to the reserved interval height, then the steel framework is installed between an upper cantilever and a lower cantilever, the upper end of the steel framework is fixedly connected with an upper cantilever wall, and the lower end of the steel framework falls on the top face of the cement mortar; transverse keels are mounted on the steel framework on the back side of the metal damper to reinforce the frame body, and an access door area is reserved on the steel framework on the front side; rock wool is filled in the space of the steel skeleton, panel and surface layer construction is carried out, and finally an access door is installed.

The invention belongs to the technical field of shock insulation supports, and particularly relates to a composite thick laminated rubber shock insulation support with self-adaptive damping, a shock insulation method of the composite thick laminated rubber shock insulation support and an intelligent fluid preparation method. According to the technical scheme, the composite thick laminated rubber shock insulation support with the self-adaptive damping function comprises an upper connecting steel plate and a lower connecting steel plate, a steel plate layer, a rubber layer, a pressure sensing layer and a sensor network layer are arranged between the upper connecting steel plate and the lower connecting steel plate, and a plurality of fluid cavities communicated through pipelines are formed in the rubber layer; the pressure sensing layer is provided with an electromagnetic coil, a piezoelectric driving unit and a valve body, the valve body is connected with the fluid cavity through a guide pipe, the electromagnetic coil is arranged on the valve body in a sleeving mode, and the electromagnetic coil and the valve body are electrically connected with the piezoelectric driving unit. The invention provides a composite thick laminated rubber shock insulation support with self-adaptive damping, a shock insulation method of the composite thick laminated rubber shock insulation support and an intelligent fluid preparation method, and the composite thick laminated rubber shock insulation support has intelligent sensing and self-adaptive adjusting functions and can keep long-term stability.

The invention relates to the technical field of civil engineering structure plate deformation joint connection, and discloses a civil engineering structure plate deformation joint connecting device and a using method thereof.The civil engineering structure plate deformation joint connecting device comprises at least two adjacent concrete plates, and a deformation joint is arranged between the concrete plates; the elastic rubber belt is arranged in the deformation joint, and the elastic rubber belt is arranged in the length direction of the deformation joint and used for connecting the adjacent concrete slabs and providing telescopic connection to adapt to thermal expansion and cold contraction or other deformation of the concrete slabs; the supporting structures are located on the two sides of the elastic rubber belt, and each supporting structure comprises a first supporting plate and a second supporting plate. The elastic rubber belts are arranged in the length direction of the deformation joint, flexible connection can be provided between the concrete slabs, thermal expansion and cold contraction or other displacement deformation of the concrete slabs caused by temperature changes and foundation settlement are effectively absorbed through the design, and therefore the situation that the concrete slabs crack or are unstable in structure is avoided.

The invention discloses a magneto-rheological intelligent variable stiffness support, and relates to the technical field of building shock insulation, the magneto-rheological intelligent variable stiffness support comprises a lower bottom plate and an upper bottom plate, a separation ring is mounted between the lower bottom plate and the upper bottom plate, a high-damping rubber support is mounted in the separation ring, and a ring shaped like a Chinese character'hui 'is fixedly connected in the separation ring; the concentric-square-shaped rings are evenly distributed on the peripheral side of the high-damping rubber support, magnetorheological dampers are arranged on the adjacent sides of the outer walls of the concentric-square-shaped rings, self-adjusting mechanisms which are evenly distributed are installed on the inner walls of the separation rings and used for adjusting the rigidity of the magnetorheological dampers, and an auxiliary magnetic mechanism is arranged between the lower bottom plate and the upper bottom plate and used for adjusting the rigidity of the magnetorheological dampers. The auxiliary magnetic mechanism is arranged outside the magneto-rheological damper, and steering assemblies are installed at the two ends of the magneto-rheological damper respectively. The self-adjusting mechanism can be automatically adjusted in an earthquake, the service life of the magneto-rheological damper is prolonged, the adaptive assembly achieves accurate control over the magneto-rheological damper, and the control effect of the support on structural vibration is greatly improved.

The invention discloses an assembly type anti-explosion and anti-explosion wall, and belongs to the technical field of anti-explosion walls, the assembly type anti-explosion and anti-explosion wall comprises a phase change heat exchange energy-saving wall body, an explosion venting opening is formed in the phase change heat exchange energy-saving wall body, the explosion venting opening is square, an explosion venting window is installed on the explosion venting opening, a pressure bearing mechanism is arranged on one side, located outside, of the phase change heat exchange energy-saving wall body, and the pressure bearing mechanism is connected with the explosion venting window. The pressure-bearing mechanism is used for reducing explosion pressure and comprises a pressure-bearing box, a plurality of pressure-bearing plates which are rotationally connected with one another are arranged in the pressure-bearing box, first springs are jointly connected among the pressure-bearing plates, an air bag is further arranged in the pressure-bearing box, and the air bag is arranged in the pressure-bearing box. A material storage box is further arranged on the face, located outside, of the phase change heat exchange energy-saving wall body, fire extinguishing materials are arranged in the material storage box, a transmission box is arranged above the material storage box, an opening mechanism is arranged in the transmission box, the air bag is connected with the opening mechanism, and the air bag is extruded when explosion occurs. Explosion impact can be relieved, and meanwhile on-site fire sources can be extinguished.

The present invention relates to the technical field of thermal insulation walls, an integral prefabricated embedded sandwich thermal insulation wall, comprising an thermal insulation board body, a casting layer is cast on the outer side of the thermal insulation board body, outer protective layer plates are provided on both sides of the casting layer, a connection mechanism is provided inside the thermal insulation board body to facilitate strengthening the stability of the connection with the thermal insulation board body, a positioning mechanism is provided between the thermal insulation board body and the outer protective layer plate to facilitate positioning the spacing and controlling the casting thickness of the casting layer, the positioning cylinder is fixedly connected to one side of the thermal insulation board body, and the limit indicator rod is fixedly connected to the outer surface of the positioning cylinder. The integral prefabricated embedded sandwich thermal insulation wall is provided with an adjustment sleeve sleeved on the positioning cylinder fixedly connected on both sides of the thermal insulation board body, and the adjustment sleeve is connected to the connecting nut and the connecting bolt connected to the outer protective layer plate through a threaded hole, so as to control the casting thickness of the casting layer according to the required adjustment of the spacing between the thermal insulation board body and the outer protective layer plate.

The utility model discloses an FRP (fiber reinforced plastic) bar-steel bar mixed reinforced concrete column with high corrosion resistance and shock resistance toughness, which comprises a concrete layer, an FRP bar framework and a steel bar framework, the FRP bar framework is positioned on one side close to the surface of the concrete layer, the steel bar framework is positioned on the inner side of the FRP bar framework, and the steel bar framework is formed by a plurality of steel longitudinal bars and a plurality of steel stirrups. The FRP bar framework is formed by a plurality of FRP longitudinal bars and a plurality of FRP stirrup belts. According to the concrete column, the corrosion-resistant FRP longitudinal bars and the FRP stirrup belts are arranged on the outer side, the steel bars prone to corrosion are arranged on the inner side, linear elasticity and corrosion resistance of FRP materials and the excellent energy dissipation capacity of the steel bars are fully utilized, and the concrete column with the FRP bars and the steel bars in mixed reinforcement and good in corrosion resistance and seismic toughness is formed; and moreover, the used FRP ribs can provide stable secondary rigidity after the steel bars are yielded, so that residual deformation of the column after unloading is reduced, and rapid repair of the concrete column after an earthquake is facilitated.

The support comprises an upper seat plate, a spherical crown lining plate, a middle steel lining plate and a lower seat plate, the upper seat plate is fixedly installed at the bottom of a beam bottom, the spherical crown lining plate is arranged between the upper seat plate and the middle steel lining plate, the middle steel lining plate is arranged between the spherical crown lining plate and the lower seat plate, and the spherical crown lining plate is fixedly installed on the lower seat plate. The lower seat plate is fixedly mounted at the top of a bridge pier, the bottom surface of the upper seat plate is fixedly connected with a first limiting ring through a first anti-shear pin, the first limiting ring abuts against the middle steel lining plate, the top surface of the lower seat plate is fixedly connected with a second limiting ring through a second anti-shear pin, and the second limiting ring abuts against the middle steel lining plate. In a normal use state, the slip surface adopts a large curvature radius and a small friction coefficient to provide smaller damping, reduce the acting force of the support on a bridge and reduce the lifting of a beam end, and in an earthquake state, the slip surface adopts a small curvature radius and a large friction coefficient to provide larger damping, so that the shock absorption and isolation effect of the support is improved; and displacement of the bridge under the earthquake condition is controlled.

The invention discloses a multi-structure novel auxetic metamaterial replaceable energy dissipation metal damper, and relates to the technical field of anti-seismic equipment, the multi-structure novel auxetic metamaterial replaceable energy dissipation metal damper comprises a fixing seat, through the fixing seat, plate-shaped auxetic supporting and columnar double-deformation mechanism novel auxetic metamaterial double structures are used for energy dissipation at the same time, so that the anti-seismic function is achieved; the building can be dynamically protected under the earthquake vibration impact effect; the modular replaceable energy consumption core body design is adopted, and quick disassembly and replacement of damaged components are achieved through the assembly type design; meanwhile, a self-adaptive displacement compensation structure is combined, and the stability of the main body structure is maintained in the continuous energy consumption process; according to the device, the anti-seismic reliability of a building structure in the whole life cycle is remarkably improved, the later operation cost is reduced through the maintenance-friendly design, and all-around performance optimization from earthquake protection to daily maintenance is achieved.

The invention relates to a plant steel truss floor support plate, and belongs to the field of building steel structures, the plant steel truss floor support plate comprises a first bottom plate and a second bottom plate, the first bottom plate is arranged on the second bottom plate, the size of the second bottom plate is larger than that of the first bottom plate, and a plurality of first vertical rib positioning grooves are formed in the second bottom plate; the first vertical rib positioning grooves are formed close to the side face of the first bottom plate, second vertical rib positioning grooves are formed in the two sides of the first bottom plate, the second vertical rib positioning grooves penetrate through the bottom and the top of the first bottom plate, the second vertical rib positioning grooves correspond to the first vertical rib positioning grooves in a one-to-one mode and are communicated with the first vertical rib positioning grooves, and the first vertical rib positioning grooves in the two sides of the second bottom plate correspond to each other in a one-to-one mode. The floor support plate has the advantages that the vertical steel bars can be accurately and rapidly positioned, the vertical steel bars are not prone to deviation in the welding process, meanwhile, splicing of the adjacent bottom plates is facilitated, the machining difficulty of the floor support plate is lowered, and the situation of slurry leakage in the concrete pouring process is reduced.

The present invention relates to the technical field of building walls, and discloses a pressure relief explosion-proof wall structure, including an embedded box embedded in the wall, an outer sealing plate is rotatably provided on the left side plate of the embedded box, and a slide plate is slidably provided on the right side plate, an inner sealing plate corresponding to the outer sealing plate is rotatably provided on the slide plate, and a connecting rod is rotatably connected between the outer sealing plate and the inner sealing plate; an extension plate is integrally provided at the end of the slide plate, and a limit plate is elastically slidably inserted on the embedded box. The present invention can achieve a pressure relief effect to reduce the probability of damage to the wall and the effect of personal injury, and can also keep the outer sealing plate and the inner sealing plate in an open state when there is no explosion risk and ventilation is required, so as to achieve indoor ventilation and play the role of a ventilation window, thereby eliminating the setting of the ventilation window in the prior art, reducing the number of reserved installation openings in the wall, and enhancing the strength of the wall.

A strong column-weak beam design method for a steel frame beam-box column under bidirectional earthquake excitations, comprising: designing an initial frame; on the basis of a reaction spectrum CQC method calculation result of the initial frame, defining important beam-column joints and important cross sections according to a designed axial compression ratio; unifying bidirectional COF values of the important beam-column joints; determining the degree of realization of "strong column-weak beam", and proposing two quantifiable evaluation indexes P1 and P2; and counting a damage index D of the frame after elastoplastic time history analysis of multiple natural waves, and according to evaluation criteria, obtaining parameter frames conforming to a target yield mechanism, if a parameter frame satisfies the target yield mechanism, considering that the frame can realize a target "strong column-weak beam" yield mechanism in the evaluation criteria, and if the parameter frame does not satisfy the target yield mechanism, indicating that the designed frame cannot realize the "strong column-weak beam" yield mechanism conforming to the evaluation criteria under the bidirectional earthquake excitations, and needing to redesigning the frame by increasing the bidirectional COF values.

The present invention relates to a prefabricated infilled panel-frame structure capable of accommodating seismic-loading and seismic energy dissipation, and a construction method thereof, including a frame body, a prefabricated infilled panel group, a panel connector, and a disc spring assembly. During an earthquake, the present invention slides to dissipate energy only after the maximum starting sliding force is exceeded, thus providing the structure with a relatively high lateral stiffness prior to sliding. After an earthquake, the disc spring assembly of the present invention may provide a certain restoring force due to being compressed so as to reduce the residual displacement. Further, the present invention achieves the bidirectional deformation cooperation of the prefabricated infilled panel under earthquakes, so that the infilled panel may still achieve the function of seismic energy dissipation under the coupling action of in-plane and out-of-plane loads.

The invention discloses a fabricated building module anti-seismic connection node structure, which relates to the field of fabricated buildings, is used for connecting beam columns and I-shaped beams, and comprises two connection plates symmetrically mounted at the end parts of the I-shaped beams; the fixing base is fixedly installed on the beam column, two symmetrically-arranged bearing parts are arranged on the fixing base, inserting grooves allowing the connecting plates to be inserted are formed in the bearing parts, and the connecting plates are connected with the bearing parts through bolts; the N first friction pieces are arranged between the two bearing parts; the first friction pieces and the second friction pieces are distributed in a staggered mode to form a friction contact face, during an earthquake, displacement of the beam column and the I-shaped beam forces the first friction pieces and the second friction pieces to slide relatively, kinetic energy is converted into heat energy to be dissipated, meanwhile, the N first friction pieces and the N + 1 second friction pieces are staggered to form multi-point friction, and the friction contact face is formed. The energy consumption efficiency is gradually increased along with the displacement magnitude, the anti-seismic energy consumption capacity of the structure is greatly improved, and damage of an earthquake to a building structure is effectively reduced.

The invention discloses a recycled concrete interlayer-corrugated steel plate composite shear wall with recoverable functions. The anti-seismic property of the steel plate-concrete composite shear wall can be improved, but the steel plate-concrete composite shear wall is prone to local buckling or large deformation under the action of large horizontal loads. Frame columns are vertically arranged on a foundation; shear walls are arranged between the frame columns; a self-resetting device and a friction energy consumption device are arranged between the bottom of the shear wall and the foundation; the self-resetting devices are arranged at the bottom of the shear wall and on the two sides of the friction energy dissipation device. The foundation and the frame columns are fixed through column foot connecting pieces, and a lower end plate is arranged in the center of the foundation. Energy is dissipated through deformation of the disc spring, self-resetting is achieved through the self-resetting device after an earthquake, and residual deformation after the earthquake can be reduced; the energy dissipation beam section generates shear deformation due to the displacement difference between the shear wall and the frame column, the beam section dissipates energy through friction and pulls the SMA stranded wires to deform, and structural deformation is restored through elastic restoring force of the SMA stranded wires after an earthquake.

The single-ring-plate hidden bracket beam-column connecting joint comprises a frame column and a superposed beam, the frame column is provided with a lower ring plate and a stiffening rib plate, holes are formed in the intersection position of the steel pipe wall of the frame column and superposed beam top ribs, the superposed beam top ribs on the two sides of the joint penetrate through the holes in the steel pipe wall, and superposed beam bottom ribs are connected with a beam bottom embedded steel plate in a welded mode. And the embedded steel plate is welded with the frame column outer ring plate. Efficient assembly is achieved by means of fillet weld connection between the beam bottom embedded steel plate and the side face of the lower ring plate, an upper ring plate is omitted to reduce material cost, the short stiffening rib plates are additionally arranged to enhance joint rigidity, the structure is simple, the force transmission path is clear, and the problems that traditional frame joint overhead welding construction is complex, the positioning precision requirement is high, and stability is insufficient are solved. While the assembly efficiency and quality are improved, a high-reliability node solution is provided for the assembly type frame structure.

According to the high-damping anti-drawing three-dimensional seismic mitigation and isolation support, the long-term load borne by the metal rubber composite spring is reduced, and the service life of the metal rubber composite spring is prolonged. The vertical seismic mitigation and isolation assembly and the horizontal seismic mitigation and isolation assembly are connected and fixed. The metal-rubber composite spring is arranged between the vertical seismic mitigation and isolation top plate and the vertical seismic mitigation and isolation bottom plate, the upper end of the metal-rubber composite spring is fixed with the vertical seismic mitigation and isolation top plate, and the lower end of the metal-rubber composite spring is fixed with the vertical seismic mitigation and isolation bottom plate; the upper supporting seat is fixed on the vertical seismic mitigation and isolation top plate, and the lower supporting seat is fixed on the vertical seismic mitigation and isolation bottom plate; the shear fork lifting mechanism is movably arranged between the upper supporting base and the lower supporting base, the upper bearing base is slidably connected to the lower portion of the upper supporting base, and the lower bearing base is slidably connected to the upper portion of the lower supporting base. The upper end of the scissor fork is connected with the upper bearing seat, and the lower end is connected with the lower bearing seat; the elastic supporting mechanism is connected with the shear fork and elastically supports the shear fork.

The invention discloses a beam-column joint reinforced through FRP pipes, and belongs to the technical field of construction building structures, the beam-column joint comprises a joint formwork for bearing concrete, a plurality of steel bars are arranged in the joint formwork and are distributed in a horizontally and vertically staggered mode, the FRP pipes are vertically arranged at the joint positions in the joint formwork, a plurality of through holes are formed in the side faces of the FRP pipes in a penetrating mode, and the FRP pipes are connected with the joint formwork. The reinforcing steel bars penetrate through the penetrating holes, the FRP pipe is arranged in the middle of the beam-column joint, the FRP pipe provides 45-degree shear resistance and annular constraint for the beam-column joint through the tubular structure, the bending resistance of the beam-column joint in the vibration environment is improved, the FRP pipe is arranged to replace the vertical limit reinforcing steel bars, the number of the reinforcing steel bars is reduced, and the construction efficiency is improved.

The invention discloses a steel roof steel structure with anti-seismic continuous fusiform blades and a construction method of the steel roof steel structure. Comprising a first row of stand columns, a second row of stand columns, a third row of stand columns, a first row of cross beams, a second row of cross beams, a third row of cross beams, evenly-distributed forked columns, eccentric forked columns, a first row of continuous fusiform steel net frames, a second row of continuous fusiform steel net frames, a finger corridor connecting net frame and a cantilever canopy net frame. The steel roof in the shape of the two rows of continuous fusiform blades and the highest slope tip formed at the highest position of the second row of fusiform blades are novel and unique, have more sense of space, layering sense and rhythm sense, are more dynamic, can be integrally similar to the shape of a lotus treasure, and have the artistic conception of golden top Buddha light, mountain chain cloud sea and three-river confluence; a unique and novel steel reinforced concrete column and steel tube concrete column combined mode is adopted for supporting, the construction quality can be improved under the condition of large-span hoisting, and the construction difficulty is reduced.

The invention relates to the technical field of sound absorption, noise reduction and impact resistance, in particular to a multifunctional tunable bionic sound absorption and collision prevention integrated superstructure and a preparation method thereof.The multifunctional tunable bionic sound absorption and collision prevention integrated superstructure comprises a shell, an upper sound absorption layer, a lower sound absorption layer and a middle collision prevention layer, the sound absorption layer is provided with a plurality of curved-surface microwell plates which are connected end to end to form a cavity, and the embedded pipe is combined with the cavity to form a Helmholtz resonator; the anti-collision layer is composed of an energy absorption unit array. The preparation method comprises the steps that a three-dimensional model is firstly built, then a laser scanning mode and parameter printing are set, then heat treatment is conducted, then cutting and layer taking are conducted, and finally the superstructure is manufactured through glue joint. The sound absorption and noise reduction functions and the energy absorption and anti-collision functions are integrated, the sound absorption performance is improved through the bionic structure, energy is efficiently absorbed through the middle layer dot matrix, adjustable performance and lightweight design are achieved through parameterized design, the additive manufacturing process is simple, convenient and efficient, and large-scale production and application are facilitated.

The utility model relates to the technical field of energy dissipation and shock absorption of civil engineering structures, in particular to a replaceable belleville spring connecting device with a self-resetting energy dissipation function, which comprises a plurality of complex belleville spring connecting devices used in a frame swing wall structure, the device comprises a plurality of belleville springs, and gaskets are arranged among the belleville springs; second outer baffles are installed on the left side and the right side of the device, the first baffles and the second baffles on the upper side and the lower side are connected through high-strength bolts, a thrust bottom plate and a hexagonal locking nut are arranged on the right sides of the second baffles, and a single-lug plate is arranged on the left sides of the second baffles. The connecting device has the advantages that the resetting and energy consumption principles of the connecting device are basically the same as those of a common steel strand and a damper, the mounting mode is simpler, the manufacturing cost is lower, and the universality is better; and on the other hand, the connecting device has better replaceability, the damaged belleville spring, the damaged gasket and the damaged rubber pad are detached and replaced, the production cost is reduced, earthquake energy can be dissipated, and resetting of the structure after an earthquake is achieved.

The utility model relates to a high-performance sealed viscous damping wall, and belongs to the technical field of civil engineering structures. Comprising steel frames, gapless spherical hinges, bushings, piston rods, pistons, oil cylinders, extension pipes, experiment connecting holes, shells, lug plates and embedded parts, the steel frames are arranged on the left side and the right side of the high-performance sealed viscous damping wall, the inner sides of the steel frames are symmetrically and fixedly connected with two or more sets of gapless spherical hinges, and viscous dampers are arranged between every two sets of gapless spherical hinges. The viscous damping wall has the beneficial effects and advantages that the viscous damping wall adopts a completely sealed structure, so that the pollution of silicone oil is avoided, and the durability of a product is ensured; the damping wall is easy to install on site, and the damping wall can be rotationally and obliquely installed according to the actual situation on site; an experiment table connecting hole is formed in the steel frame side plate, so that the non-destructive experiment of the viscous damping wall is realized; and the multiple groups of viscous dampers are connected with the steel frame through the gapless spherical hinges, so that the good cooperative work performance is achieved.